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Random network (gateway) disconnect

Posted on 2012-04-06
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Last Modified: 2013-11-19
Have one user that just started getting disconnected from the internet once or twice a day. While disconnected the computer can access the server along with pinging it but can't ping the gateway. No one else is having the disconnect.
I have changed the network cable on the pc side and the switch side and also changed the port that the computer plugs into.
I have ipconfig /release, /flushdns, /registerdns
There is no event log from the time period that this happens.
My only other option to test is to install a new NIC card and see if it happens on that.
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Question by:calitech
5 Comments
 
LVL 12

Assisted Solution

by:DLeaver
DLeaver earned 166 total points
ID: 37817097
What is the model of your router?

Try the following from an elevated command line

cd\

netsh int ip reset reset.log

Then restart the PC
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LVL 35

Accepted Solution

by:
Robert Schutt earned 167 total points
ID: 37818118
We've seen this at our company. I'm not a system or network engineer but thought I might share: we compared 2 computers' settings and found that the network card driver (RealTEK) had been updated and on the system that didn't have the problem, it was not. So we did a rollback of the driver and it was solved.
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LVL 20

Assisted Solution

by:masnrock
masnrock earned 167 total points
ID: 37819970
Reset the TCP/IP stack as Dleaver already mentioned. Also check the power management settings on the NIC card. Any patterns to when they are getting disconnected?
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Author Comment

by:calitech
ID: 37823601
I did the reset IP stack and also the NIC did have a power management setting enabled so I disabled it. I will wait to see what happens today or tomorrow with the user.
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Author Closing Comment

by:calitech
ID: 37893181
did everything and also updated the driver instead of rolling it back and no more disconnects.
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